ETU-LINK 10G DWDM SFP+ optical module is a type of high-speed, dense wavelength division multiplexing (DWDM) optical module. It is a small form-factor pluggable (SFP+) optical module that supports a data transfer rate of 10 Gbps and utilizes DWDM technology for optical signal transmission. DWDM technology enables the simultaneous transmission of multiple different wavelengths of light signals on a single optical fiber, thereby achieving high-density data transmission and large bandwidth communication capabilities. It is compatible with standard SFP+ interfaces and suitable for various network devices such as switches, routers, etc. It is used in backbone networks, metropolitan area networks, data centers, etc., to meet the demand for high bandwidth and long-distance transmission.